Reef Central Online Community

Home Forum Here you can view your subscribed threads, work with private messages and edit your profile and preferences View New Posts View Today's Posts

Find other members Frequently Asked Questions Search Reefkeeping ...an online magazine for marine aquarists Support our sponsors and mention Reef Central

Go Back   Reef Central Online Community Archives > General Interest Forums > Lighting, Filtration & Other Equipment
FAQ Calendar Today's Posts Search

 
 
Thread Tools Search this Thread Display Modes
  #426  
Old 12/31/2007, 04:20 PM
RobbyG RobbyG is offline
Premium Member
 
Join Date: Jun 2005
Location: Near the Reef
Posts: 2,633
Yes but you don't have $2000 worth of livestock depending on you during high school chem class


If I use two Thermometers and one reads 76 Deg and the other Reads 79 Deg which one do I believe??

If I have 3 it now removes that doubt.

Quote:
Originally posted by Cheekmonkey
As too the triple calibration, we don't even use three calibration points doing simple analytical chemistry in school.
  #427  
Old 01/02/2008, 06:23 PM
RobbyG RobbyG is offline
Premium Member
 
Join Date: Jun 2005
Location: Near the Reef
Posts: 2,633
It will be real interesting to see how the Real time power monitoring works out. I am very interested to know how it will deal with short circuits.


Quote:
Originally posted by reef / aholic
The RKE will be added to list to look at!!!
  #428  
Old 01/02/2008, 11:04 PM
morty morty is offline
Premium Member
 
Join Date: Jul 2000
Location: Shorewood, MN
Posts: 136
Quote:
Originally posted by Cheekmonkey
As too the triple calibration, we don't even use three calibration points doing simple analytical chemistry in school.
That's surprising. The pH monitor in the biochem lab I worked in during college always used 3-point calibration. Probes are not linear, so a 3rd point is needed to more accurately calculate their response curve.

I can take two new probes with my ACIII, calibrate them (letting each probe settle for 10 minutes before storing the data points), and the probes will often differ by .05 unit or more when placed in the same SW. That just shouldn't happen when trying to monitor pH, and I believe if they used 3-point calibration it could be eliminated.

I bought some pH 9 cal fluid to use for the high point, this should give more accurate readings. (At least ACIIIs let you choose the low/high cal fluid values, which is nice.)
 


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -5. The time now is 10:54 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Use of this web site is subject to the terms and conditions described in the user agreement.
Reef Central™ Reef Central, LLC. Copyright ©1999-2009